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Determining the Elevations
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Coast-Geodetic-Survey
Geodesy
Determining the Elevations
Level crew with the tools of the trade.Level party of Caspar Durgin
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Level crew with the tools of the trade.Level party of Caspar Durgin
3/18/2019 12:28:27 PM
Date:
1920
Credit:
C&GS; Season's Report Durgin 1920
Location:
Oregon
Subject:
Geodesy
Subject:
Leveling
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